Which is bigger earth or moon. moon dimensions

Right. The earth is larger than the moon. How much more? We see the moon as very small. Actually it is not. The Moon is only six times smaller than the Earth. For comparison, you can imagine a one-story house and a house with six floors. So the moon is huge! The Earth is separated from the Moon by a distance of 384,000 kilometers by a space rocket, this distance can be overcome in two to three days. Since the Moon is a natural satellite of the Earth, scientists are constantly watching it. Now any student can explain why it is so different.

Dimensions: 503 x 352 pixels, format: jpg. To download a photo for an astronomy lesson for free, right-click on the image and click "Save Image As...". To show photos in the lessons, you can also download the entire presentation "The Moon is a satellite of the Earth" with all the photos in a zip archive for free. Archive size - 1991 KB.

moon

"Nature of the Moon" - Lunar craters. Physical conditions on the moon. Tides. Surface change. The formation of the moon. The Moon is the largest satellite in the solar system. The moon is an ideal place for astronomical observations. Lunar rocks. Moon movements. Exploration of the Moon by spacecraft. Internal structure. Surface. The nature of the moon.

"Phases of the Moon" - The average distance from the Earth to the Moon is 384 thousand km. Conversely, when we see a full moon on Earth, a "new earth" can be observed from the Moon. Luna is the only natural satellite of the Earth. Earth's only natural satellite. What are the phases of the moon? Phases.

"Description of the Moon" - What phase is the moon today. We fly over the moon. The first lunar rover. Flight preparation. Flight. Why didn't the traces of the astronauts disappear? Why are there so many craters on the moon? Why do we only see one side of the moon. Telescope. Moon. Can the Moon be observed in the constellation Cepheus. Start. The sun. Let's fly home.

"Characteristics of the Moon" - Solar eclipse. Moon map. Lunar seas. Lunar eclipses. Spaceship. Self propelled vehicle. Air. Earth above the horizon of the moon. Automatic station. Shadow lunar eclipse. The moon is smaller than the earth. Moon. Part of the lunar surface. Scientific bases. Copernicus. Hemisphere. Our neighbor Luna. Expedition "Apollo 15".

"Observations of the Moon" - Automatic station. An ideal place for astronomical observations. Italian astronomer. The surface of the moon. The study of lunar rocks. Moon occultation of planets. Dark areas. 12 astronauts have landed on the moon. Galileo Galilei. Crater formation. Station "Luna-17". The internal structure of the moon. The nature of the moon.

"The moon is a satellite of the Earth" - The sky on the moon is not like the earth. The moon rotates around its axis. Why don't people live on the moon? The earth is larger than the moon. He grew up, grew up, was horned - he became round. From the Earth to the Moon, you always see the same thing. Scientists today know more about the Moon than about any other planet. Man has created artificial satellites that he launches into space.

In total there are 8 presentations in the topic

> > > Dimensions of the Moon

What is the size of the moon- Earth satellite. Description of mass, density and gravity, real and apparent size, supermoon, illusion of the Moon and comparison with the Earth in the photo.

The Moon is the brightest object in the sky (after the Sun). To a terrestrial observer, it seems gigantic, but this is only because it is located closer than other objects. In size, it occupies 27% of the earth (ratio 1: 4). If compared with other satellites, then ours is in 5th place in terms of size.

The average lunar radius is 1737.5 km. The value doubled will be the diameter (3475 km). The equatorial circle is 10917 km.

The area of ​​the Moon is 38 million km 2 (this is less than any total area of ​​​​the continent).

Mass, density and gravity

• Mass - 7.35 x 10 22 kg (1.2% of the earth). That is, the Earth exceeds the lunar mass by 81 times.
• Density - 3.34 g / cm 3 (60% of the earth). According to this criterion, our satellite ranks second, losing to Saturn's moon Io (3.53 g/cm3).
• The force of attraction grows only up to 17% of the earth, so 100 kg there will turn into 7.6 kg. That is why astronauts can jump so high on the lunar surface.

Supermoon

The moon wraps around the Earth not in a circle, but in an ellipse, so sometimes it is much closer. The closest distance is called perigee. When this moment coincides with the full moon, we get a super moon (14% larger and 30% brighter than usual). It repeats every 414 days.

horizon illusion

There is an optical effect that makes the apparent size of the moon appear even larger. This happens when it rises behind distant objects on the horizon. This trick is called the moon illusion or the Ponzo illusion. And although it has been observed for many centuries, there is no exact explanation yet. In the photo you can compare the size of the Moon and the Earth, as well as the Sun with Jupiter.

One of the theories suggests that we are accustomed to watching the clouds at a height and understand that on the horizon they are miles away from us. If the clouds on the horizon reach the same size as those overhead, then, despite the distance, we remember that they must be huge. But since the satellite appears at the same size as overhead, the brain automatically aims to zoom in.

Not everyone agrees with this formulation, so there is another hypothesis. The moon appears close to the horizon because we can't compare its size to trees and other terrestrial objects. Without comparison, it seems larger.

To check for an illusion of the moon, you need to put your thumb on the satellite and compare the size. When she returns to height again, then repeat this method again. It will be the same size as before. Now you know how big the moon is.

Graphic comparison of the sizes and brightness of the Earth and the Moon.

Radius. The average radius of the Moon is 1737.1 km. The average radius of the Earth is 6371.0 km. Therefore, the Moon is 3.667 times smaller than the Earth.

Area. It follows that the surface area of ​​the Moon (37.93 million km2) is 13.45 times less than the area of ​​the Earth (510.1 million km2), 3.93 times less than the area of ​​the earth's land and is approximately equal to the total area of ​​the 3 largest states in the world - Russia, Canada and China.

Shine. Given that the albedo (reflectivity) of the Moon's surface (0.12) is 3 times lower than that of the Earth (0.367), the illumination created by the full Moon on Earth is 41 times weaker than that of the full Earth on the Moon. This corresponds to a difference of 4m magnitudes: the radiance of the full Moon is -12m.7, the radiance of the full Earth is -16m.7.

Volume. In terms of volume, the Moon is 49.33 times smaller than the Earth, in other words, it occupies a little more than 2% of the space in space.

Weight. With all this, the mass of the moon ...

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How many times smaller is the Moon than the Earth in size and mass?

The average equatorial diameter of the Moon is 3474.8 kilometers and is 27.24 percent (a little over 1/4) of the earth. In this regard, the area of ​​the lunar surface is 7.4 percent (1/13.5) of the area of ​​the earth's surface, and the volume of the Moon is only 2 percent (1/50) of the volume of the Earth. The mass of the Moon is 73.483 quintillion (billion billion) tons and is 1.23 percent (1/813) of the mass of the Earth. The difference in the relative volume and mass of the Moon (1/50 and 1/81.3) is due to the fact that the average density of the Moon (3.34 grams per cubic centimeter) is 1.65 times less than the average density of the Earth.

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Of course, the Earth.
How many times smaller is the Moon than the Earth?

Shine. Given that the albedo (reflectivity) of the Moon's surface (0.12) is 3 times lower than that of the Earth (0.367), the illumination created by the full Moon on Earth is 41 times weaker than that of the full Earth on the Moon. This corresponds to a magnitude difference of 4m: the brightness of the full moon...

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1.183. By how many times does an astronaut weigh less on the surface of the Moon than on the surface of the Earth?

The gravitational acceleration on the Moon's surface is 1.622 meters per second per second, which is 16.5 percent (or approximately 1/6) of the gravitational acceleration on the Earth's surface. Thus, an astronaut on the surface of the Moon weighs approximately 6 times less than on the surface of the Earth.
1.184. How many times smaller is the Moon than the Earth in size and mass?

The average equatorial diameter of the Moon is 3474.8 kilometers and is 27.24 percent (a little over 1/4) of the earth. In this regard, the area of ​​the lunar surface is 7.4 percent (1/13.5) of the area of ​​the earth's surface, and the volume of the Moon is only 2 percent (1/50) of the volume of the Earth. The mass of the Moon is 73.483 quintillion (billion billion) tons and is 1.23 percent (1/81.3) of the mass of the Earth. The difference in the relative volume and mass of the Moon (1/50 and 1/813) is due to the fact that the average density of the Moon (3.34 grams per...

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The closest celestial body to our planet - the Moon - we can observe every evening with the naked eye. In ancient times, people invented many legends related to its pale radiance, spots on its surface, etc.

But what do we generally know about the Moon, its size, properties, etc.? In fact, not so little.

Comparison of the sizes of the Earth and the Moon

As you know, the Moon is a natural satellite of our Earth. This means that the Moon is much smaller in mass and size than the Earth. Let's compare some of their sizes.

The average diameter of the Moon is 3474 kilometers, while the diameter of the Earth is 12742 kilometers. That is, the size of the Moon in diameter is only 3/11 of the Earth's diameter, it is 3.67 times smaller than the diameter of the Earth.

The surface of the moon covers an area of ​​37.9 million square meters. km, and the area of ​​​​the earth's surface, as you know, is 510 million square meters. km. If we compare these figures, it turns out that the surface area of ​​​​the moon is 13.5 times less than the earth's ....

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How does the modern astronomical account of years BC differ from the civil one?

At present, in international relations and in scientific matters, all the peoples of the world use the Gregorian calendar and the counting of years from the "Christmas". In the civil count of years before "the first year of our era" is "the first year of our era". In astronomical accounting, the first year of our era is preceded by a zero year, which follows minus one, and so on. This allows astronomers to keep the rule for determining leap years for the entire time covered by human history. Thus, for example, Alexander the Great, from the point of view of a historian, was born in 356 BC, and from the point of view of an astronomer, in minus 355.

What are Julian days?

In the study of various periodic astronomical phenomena (for example, changes in the brightness of variable stars), they use the special account of days proposed in 1583 by Joseph Scaliger for the purposes of history and chronology so ...

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Weight: 7.35 * 1022 kg, i.e. 0.0123 of the mass of the Earth. Diameter: 3476 km, i.e. 0.273 Earth diameter. Density: 3.342 g/cm3 Gravity: 0.1653 of Earth's gravity The moon is 380,000 km from Earth. It is the only satellite of the Earth. There is no air, no water, no weather on the moon. Its surface is covered with mountains, craters, seas of hardened lava and layers of dust. Earth is the only planet in the inner solar system with a large moon. The mass of the Earth is 81 times the mass of the Moon, and the radius is 4 times that of the moon. On the lunar surface, the gravitational force is 6 times less than on Earth, since the Moon has a much smaller mass. (A source...

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In the Welcome section, to the question of what is bigger, the moon or the earth, given by the author Denis Startsev, the best answer is, of course, the Earth.
How many times smaller is the Moon than the Earth?
Radius. The average radius of the Moon is 1737.1 km. The average radius of the Earth is 6371.0 km. Thus, the Moon is 3.667 times smaller than the Earth.
Area. It follows that the surface area of ​​the Moon (37.93 million km2) is 13.45 times smaller than the area of ​​the Earth (510.1 million km2), 3.93 times smaller than the land area of ​​the Earth and is approximately equal to the total area of ​​the three largest countries in the world - Russia , Canada and China.
Shine. Given that the albedo (reflectivity) of the Moon's surface (0.12) is 3 times lower than that of the Earth (0.367), the illumination created by the full Moon on Earth is 41 times weaker than that of the full Earth on the Moon. This corresponds to a difference of 4m magnitudes: the brightness of the full Moon is −12m.7, the brightness of the full Earth is −16m.7.
Volume. In terms of volume, the Moon is 49.33 times smaller than the Earth, that is, it occupies a little more than 2% of the space in ...

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In the section on the question of what is larger, the moon or the earth? given by the author element the best answer is The Moon is definitely smaller than the Earth. There are thousands of stars, some smaller than Earth, others larger. In our solar system, the largest star is the sun, but in our galaxy, the milky way, there are other stars much larger than the sun.
A star is a celestial body of gigantic mass, consisting mainly of hydrogen and helium, while the planets are composed of heavier elements, since they were formed as a result of the union of cold bodies and particles, and that part of this substance that was not included in the composition of the planets formed such celestial bodies like comets, asteroids and satellites. About the size: The diameter of the Earth is 12,756 km, the Moon is 4 times smaller, the Sun is 1,392,000 km

Answer from 22 answers[guru]

Hey! Here is a selection of topics with answers to your question: which is bigger the moon or the earth?

Answer from Inna Suleimanova[guru]
the largest star is the Sun, the Earth is larger than the Moon, but I can’t say the size

Answer from User deleted[active]
I know for sure that the earth is bigger than the moon, and the biggest star is the sun.

Answer from HARD_MAN[expert]
The moon is a satellite of the earth, it is smaller .. I was confused by the question about the size! Do you need radius or surface area? The radius at the ground is 6 to the 10th power. The sun is the biggest.

Answer from Oposum[guru]
Zemlyu s zemli ne vidno, znachit bolshe Luna!

Answer from Post[expert]
the earth is bigger, the moon is smaller. any star is larger than the earth. I don’t know the dimensions of the earth and the moon, the moon is about 6 times smaller than the earth, the earth has the largest satellite in our system - not a hellish planet has satellites larger than the moon, red giants are considered the largest stars, white dwarfs are small, the sun is related to medium stars .

Answer from ALIEN[guru]
1this planet
2 any star
31.28 kisaltan
4 is 6 times smaller
5 doesn't matter yet
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a planet is a star only when
when it radiates energy in the optical range...

Answer from Victor Orlinsky[master]
The earth is larger than the moon.
Earth is not a star, but a planet.
The diameter of the Earth is 12660 km.
I don't know the size of the moon.
Even scientists cannot determine the largest star. link
What he knew, he wrote.